Vol. 1 originally issued in 13 fascicules, v. 2 in 12 fasc. (numbered 1-12, as well as 14-25 in continuation of those in t. 1); fasc. 1-13 published Feb. 1882-Oct. 1886, fasc. 14-25 Nov. 1887-Mar. 1898
Each vol. consists of text vol. and atlas vol
No more published
Includes bibliographical references and index
t. 1. Gastropodes -- t. 2. Pelecypoda
Extremely Warped book. Gutter Shown, some text is in the gutter.